Atec SAM-4040D User Manual
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See bursty noise, TDMA
signals, transients as short
as 5 µs
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Designed to work with highloss test points available in
today’s amplifiers
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Advanced TDMA digital measurements: level, signal/noise,
time-domain display
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Five hour continuous use battery life (battery and charger
compatible with older
Stealth units)
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Existing SAM 4040s can be
upgraded to SAM 4040D
functionality
The new SAM 4040D includes all of the
same test capabilities of the Wavetek SAM
4040, but now more features are packed into
the same lightweight, durable package. The
new 4040D offers a faster spectrum analyzer
display, TDMA measurements, and a new
long-life battery.
Find Ingress Fast
One of the biggest problems with twoway networks is ingress. Even though a
network may meet leakage guidelines,
lower frequency RF signals can still leak
into the cable; this is ingress. The portable,
durable SAM 4040D’s fast, sensitive spectrum display makes finding ingress in the
field quicker and easier.
Wavetek’s SAM 4040D is equipped with
a new impulse noise detector and more
powerful spectrum analysis modes. These
allow technicians to see noise spikes as fast
as 5 µs and track them down.
Measure TDMA or Continuous
Digital Signals
Wavetek’s SAM 4040D also offers a complete set of digital signal measurements:
1) Power level measurements can be made
on TDMA (‘bursted’) channels (cable
modems and most return path signals), as well
as continuous carrier channels (digital video
and most forward path signals).
2) Time-domain displays give more information about TDMA channels. Packets of
data from a cable modem can be seen and
examined. Users can verify that all modems
are being received at the same level, see
‘collisions’, or get a quick idea of network
traffic levels from any point in the field.
3) In-service in-channel D/U (desired/unde-
sired) measurements for TDMA signals. Now,
without taking modems out of service, users
can measure the level of interference in the
SAM 4040D™– PRELIMINARY
Advanced HFC Signal Analysis Meter
SAM 4040D™– PRELIMINARY
actual channel being used.
4) digiCheck™continuous carrier
power level measurement is still
available. By ‘slicing’ the desired
channel and measuring across the
entire spectrum, tilt, spectrum
shaping, and other problems are all
detected accurately.
With these capabilities, the
SAM 4040D offers the most comprehensive digital measurement
package in any SLM.
The Same Tough Stealth Package
All of these new features are in
the same package that propelled
the current 4040 Signal Analysis
Meter, and other Stealth instruments, to become the industry
leader in field maintenance and
sweep test.
• Lightweight– At 4.9 lbs., the
SAM 4040D is half the
weight of most competitors.
• Easy-to-carry– The SAM
4040D’s weight and size mean
it can be held in one-hand and
easily carried. You may not even
want to use the shoulderstrap.
• Water resistant– The SAM
4040D is ready for field use
no matter what the weather
conditions.
• High resolution display– The
320x240 dot matrix LCD provides high-resolution displays
of all measurements.
• Easy-to-use– The SAM 4040D
provides a simple user interface that is now common on
all Wavetek’s SLM, leakage,
SAM and sweep meters. This
means less training time and
more time for troubleshooting.
Comprehensive Spectrum
Analyzer Display
Five times faster than the original SAM 4040, when you press
SPECT, the spectrum update is as
fast as 750 ms per sweep. You can
zoom in and out with rapid button
presses to isolate ingress problems
or view TDMA signals.
More important is the ability to
catch transients and noise. The
SAM 4040D detects signals as fast
as 5 µs—in both zero span, and continuous modes. A built-in preamp
and 50 MHz low-pass filter allow
you to track down smaller signals,
even through high-loss test points.
The SAM 4040D’s expanded
SPECTRUM mode provides the
tools needed to find ‘difficult’
problems.
• Programmable ‘dwell’ time
allows the meter to stay on
each frequency longer and
catch more ingress.
• Peak hold in spectrum mode
saves transient spikes instead
of overwriting them with the
next trace.
• CSO/CTB mode for automatically making intermodulation
measurements.
Wavetek’s New
Zero-Span Display
While tracking down ingress, a
spectrum Zero-span mode allows
the user to ‘camp’ on a given frequency and see a signal as it
comes and goes.
The SAM 4040D also measures
and analyzes digital TDMA channels. First, you can observe the
power level of a packet/message.
Move the cursor onto the packet,
and the SAM 4040D indicates the
level. In addition, desired/undesired levels are displayed in real
time. Moving the cursor to an
empty time slot produces an automatic desired/undesired (carrier to
noise) measurement. Adjustable
resolution and video bandwidths
can be used to tailor zero-span displays to show what the user wants.
Adjustable measurement bandwidth automatically calculates full
channel power in zero-span mode.
Sample Spectrum Display
Zero span mode provides accurate TDMA measurements.
SAM 4040D's new Navigator screen makes finding measurement modes easy.